C++ (Cpp) GST_RGB_2_BAYER Exemples

Exemple #1

Fichier : gstrgb2bayer.c Projet : spunktsch/svtplayer

static GstFlowReturn
gst_rgb2bayer_transform (GstBaseTransform * trans, GstBuffer * inbuf,
                         GstBuffer * outbuf)
{
    GstRGB2Bayer *rgb2bayer = GST_RGB_2_BAYER (trans);
    guint8 *dest;
    guint8 *src;
    int i, j;
    int height = rgb2bayer->height;
    int width = rgb2bayer->width;

    dest = GST_BUFFER_DATA (outbuf);
    src = GST_BUFFER_DATA (inbuf);

    for (j = 0; j < height; j++) {
        guint8 *dest_line = dest + width * j;
        guint8 *src_line = src + width * 4 * j;

        for (i = 0; i < width; i++) {
            int is_blue = ((j & 1) << 1) | (i & 1);
            if (is_blue == rgb2bayer->format) {
                dest_line[i] = src_line[i * 4 + 3];
            } else if ((is_blue ^ 3) == rgb2bayer->format) {
                dest_line[i] = src_line[i * 4 + 1];
            } else {
                dest_line[i] = src_line[i * 4 + 2];
            }
        }
    }

    return GST_FLOW_OK;
}

Exemple #2

Fichier : gstrgb2bayer.c Projet : spunktsch/svtplayer

static gboolean
gst_rgb2bayer_set_caps (GstBaseTransform * trans, GstCaps * incaps,
                        GstCaps * outcaps)
{
    GstRGB2Bayer *rgb2bayer = GST_RGB_2_BAYER (trans);
    GstStructure *structure;
    const char *format;

    GST_DEBUG ("in caps %" GST_PTR_FORMAT " out caps %" GST_PTR_FORMAT, incaps,
               outcaps);

    structure = gst_caps_get_structure (outcaps, 0);

    gst_structure_get_int (structure, "width", &rgb2bayer->width);
    gst_structure_get_int (structure, "height", &rgb2bayer->height);

    format = gst_structure_get_string (structure, "format");
    if (g_str_equal (format, "bggr")) {
        rgb2bayer->format = GST_RGB_2_BAYER_FORMAT_BGGR;
    } else if (g_str_equal (format, "gbrg")) {
        rgb2bayer->format = GST_RGB_2_BAYER_FORMAT_GBRG;
    } else if (g_str_equal (format, "grbg")) {
        rgb2bayer->format = GST_RGB_2_BAYER_FORMAT_GRBG;
    } else if (g_str_equal (format, "rggb")) {
        rgb2bayer->format = GST_RGB_2_BAYER_FORMAT_RGGB;
    } else {
        return FALSE;
    }

    return TRUE;
}

Exemple #3

Fichier : gstrgb2bayer.c Projet : spunktsch/svtplayer

void
gst_rgb2bayer_finalize (GObject * object)
{
    GstRGB2Bayer *rgb2bayer;

    g_return_if_fail (GST_IS_RGB_2_BAYER (object));
    rgb2bayer = GST_RGB_2_BAYER (object);

    /* clean up object here */

    G_OBJECT_CLASS (parent_class)->finalize (object);
}

Exemple #4

Fichier : gstrgb2bayer.c Projet : spunktsch/svtplayer

void
gst_rgb2bayer_dispose (GObject * object)
{
    GstRGB2Bayer *rgb2bayer;

    g_return_if_fail (GST_IS_RGB_2_BAYER (object));
    rgb2bayer = GST_RGB_2_BAYER (object);

    /* clean up as possible.  may be called multiple times */

    G_OBJECT_CLASS (parent_class)->dispose (object);
}

Exemple #5

Fichier : gstrgb2bayer.c Projet : spunktsch/svtplayer

void
gst_rgb2bayer_get_property (GObject * object, guint property_id,
                            GValue * value, GParamSpec * pspec)
{
    GstRGB2Bayer *rgb2bayer;

    g_return_if_fail (GST_IS_RGB_2_BAYER (object));
    rgb2bayer = GST_RGB_2_BAYER (object);

    switch (property_id) {
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
        break;
    }
}

Exemple #6

Fichier : gstrgb2bayer.c Projet : Distrotech/gst-plugins-bad

static GstFlowReturn
gst_rgb2bayer_transform (GstBaseTransform * trans, GstBuffer * inbuf,
    GstBuffer * outbuf)
{
  GstRGB2Bayer *rgb2bayer = GST_RGB_2_BAYER (trans);
  GstMapInfo map;
  guint8 *dest;
  guint8 *src;
  int i, j;
  int height = rgb2bayer->height;
  int width = rgb2bayer->width;
  GstVideoFrame frame;

  gst_video_frame_map (&frame, &rgb2bayer->info, inbuf, GST_MAP_READ);

  gst_buffer_map (outbuf, &map, GST_MAP_READ);
  dest = map.data;
  src = GST_VIDEO_FRAME_PLANE_DATA (&frame, 0);

  for (j = 0; j < height; j++) {
    guint8 *dest_line = dest + width * j;
    guint8 *src_line = src + width * 4 * j;

    for (i = 0; i < width; i++) {
      int is_blue = ((j & 1) << 1) | (i & 1);
      if (is_blue == rgb2bayer->format) {
        dest_line[i] = src_line[i * 4 + 3];
      } else if ((is_blue ^ 3) == rgb2bayer->format) {
        dest_line[i] = src_line[i * 4 + 1];
      } else {
        dest_line[i] = src_line[i * 4 + 2];
      }
    }
  }
  gst_buffer_unmap (outbuf, &map);
  gst_video_frame_unmap (&frame);

  return GST_FLOW_OK;
}